<ul id="breadcrumbs" class="pt-4">

    {{- range .Ancestors.Reverse }}
    <a href="{{ .RelPermalink }}">{{ .Title | default ( partial "function/filename.html" .Path )}}</a>
    <span> / </span>
    {{- end }}
    <a href="{{ relURL "kkbt/sum/" }}">文库索引</a>
    <span> / </span>
    <a href="{{ .RelPermalink }}">{{ .Title | default ( partial "function/filename.html" .Path ) }}</a>
</ul>
<style>
    .pt-4 {
        padding-top: 1rem; /* 16px */
      }
</style>